What Is The Foetus Like Thing Attached To My Vagina?

i think i have a problem with my vagina? when i openit as much as possible it hurts and it always looks like i have a fetus right tere at the opening atached to my wall...i am very scared and havent noticed it before now, im not one to look in the mirro...i have ms carried before, and am wondering if this is a result of one of its problems...or did io get it from birtfh...sex is no problem with me, its just always been very numb or i alot of trouble with being too sensitive....i swear there is a fetis attactched to the opening of my vagina walls, i can see it now and it freaks me out...is tere someting wrong with me???